YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1959 | 44.47 | a | 47.69 | b | 52.68 | c | 62.23 | 72.77 | 81.03 | 79.56 | 81.05 | 77.27 | 63.92 | 47.57 | 44.63 | 62.91 | ||||||||||
1960 | 40.61 | 43.36 | a | 53.82 | 65.19 | c | 70.10 | 83.47 | 78.87 | 80.18 | 75.05 | 63.82 | 51.33 | 38.39 | 62.02 | |||||||||||
1961 | 39.76 | 46.91 | 54.72 | a | 61.17 | 69.98 | 76.60 | a | 80.76 | 82.52 | 74.19 | c | 62.63 | a | 45.78 | a | 46.40 | 61.78 | ||||||||
1962 | 38.55 | 52.73 | 50.16 | 64.70 | 72.23 | 77.58 | 80.26 | b | 81.38 | a | 73.88 | 64.21 | 52.80 | 43.27 | 62.65 | |||||||||||
1963 | 35.92 | 46.95 | 55.65 | 65.93 | a | 72.31 | 78.32 | 81.71 | 76.37 | 72.48 | 64.82 | 52.65 | 39.65 | 61.90 | ||||||||||||
1964 | 37.55 | 39.22 | 50.56 | 61.03 | 70.89 | 77.44 | c | 81.65 | 79.77 | 73.67 | 60.62 | c | 50.75 | 42.65 | 60.48 | |||||||||||
1965 | 45.61 | i | 42.91 | 47.23 | a | 63.58 | 69.97 | 78.85 | 83.18 | 77.87 | 73.77 | 61.37 | 56.23 | 44.63 | 63.60 | a | ||||||||||
1966 | 37.82 | 40.18 | 56.10 | b | 62.71 | a | 71.34 | 77.33 | 84.27 | 76.23 | 71.72 | 60.48 | a | 54.12 | a | 42.80 | a | 61.26 | ||||||||
1967 | 41.53 | 46.67 | a | 58.50 | 65.05 | a | 68.69 | j | 77.52 | 81.02 | 77.52 | 71.00 | a | 62.52 | 52.72 | 40.17 | a | 61.29 | a | |||||||
1968 | 41.81 | 46.84 | 50.18 | 60.45 | 71.37 | 79.17 | a | 76.98 | 76.92 | 71.13 | 63.27 | a | 50.90 | 41.78 | a | 60.90 | ||||||||||
1969 | 47.19 | b | 47.07 | 45.98 | a | 63.85 | 71.61 | 78.88 | 82.77 | a | 83.24 | 72.62 | a | 62.00 | 47.90 | 44.08 | 62.27 | |||||||||
1970 | 41.40 | 45.41 | 48.28 | a | 60.68 | 70.18 | 77.26 | a | 80.06 | 79.63 | a | 72.52 | a | 56.69 | 49.47 | 47.61 | 60.77 | |||||||||
1971 | 44.00 | 46.18 | 55.77 | 61.17 | 70.13 | 78.70 | 80.85 | 74.45 | 72.08 | 61.95 | 52.17 | 45.16 | 61.88 | |||||||||||||
1972 | 45.76 | 47.14 | 59.48 | 65.37 | 69.97 | a | 77.59 | b | 79.65 | 75.63 | 72.15 | 63.94 | 46.28 | 42.03 | 62.08 | |||||||||||
1973 | 38.65 | 41.80 | 52.11 | 56.77 | 68.55 | 76.58 | 79.00 | 78.18 | 72.98 | 62.58 | 53.45 | 43.92 | 60.38 | |||||||||||||
1974 | 42.19 | 45.36 | 58.08 | 64.12 | 74.06 | e | 80.92 | 79.92 | 75.73 | 67.18 | 61.74 | 49.83 | 41.90 | a | 61.75 | |||||||||||
1975 | 41.53 | 45.12 | 53.06 | 57.65 | 66.98 | 78.52 | 75.98 | 77.56 | 68.52 | 62.39 | 49.70 | 41.02 | 59.84 | |||||||||||||
1976 | 39.58 | 49.84 | 54.47 | 62.32 | 67.02 | 80.26 | a | ----- | z | 79.84 | 69.22 | 56.05 | 40.73 | ----- | z | 59.93 | b | |||||||||
1977 | 40.45 | a | 45.18 | 49.02 | 61.98 | 71.53 | 81.02 | 81.85 | 83.22 | a | 78.32 | 62.23 | a | 50.42 | 45.48 | 62.56 | ||||||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 41.04 | 45.61 | 52.94 | 62.42 | 70.61 | 78.79 | 80.46 | 78.80 | 72.62 | 61.96 | 50.25 | 43.09 | 61.59 | |||||||||||||
S.D. | 2.95 | 3.18 | 3.88 | 2.52 | 1.84 | 1.82 | 2.05 | 2.67 | 2.69 | 2.29 | 3.54 | 2.42 | 0.89 | |||||||||||||
SKEW | 0.38 | -0.08 | -0.07 | -0.64 | -0.40 | 0.96 | -0.33 | 0.21 | 0.09 | -1.42 | -0.89 | -0.10 | -0.43 | |||||||||||||
MAX | 47.19 | 52.73 | 59.48 | 65.93 | 74.06 | 83.47 | 84.27 | 83.24 | 78.32 | 64.82 | 56.23 | 47.61 | 62.91 | |||||||||||||
MIN | 35.92 | 39.22 | 45.98 | 56.77 | 66.98 | 76.58 | 75.98 | 74.45 | 67.18 | 56.05 | 40.73 | 38.39 | 59.84 | |||||||||||||
YRS | 18 | 19 | 19 | 19 | 18 | 19 | 18 | 19 | 19 | 19 | 19 | 18 | 16 |